Reorder levels and chapters into a better sequence

levels/files/files-add

@@ -0,0 +1,23 @@
+title = Interior design
+cards = checkout commit-auto reset-hard file-new file-delete
+
+[description]
+
+Our client want some new furniture! You'll discover that they have a very special taste - please add some more furniture that matches this style and make a commit!
+
+[setup]
+
+echo A yellow cupboard with lots of drawers. > cupboard
+echo A really big yellow shelf. > shelf
+git add .
+git commit -m "A cupboard and a shelf"
+
+[win]
+
+NUM_FILES="$(git ls-tree --name-only -r HEAD | wc -l)"
+YELLOW_FILES="$(git grep -l yellow HEAD | wc -l)"
+test "$NUM_FILES" -ge 5 && test "$YELLOW_FILES" = "$NUM_FILES"
+
+[congrats]
+
+Thanks! Our clients says that they really like what you picked!

levels/files/files-delete

@@ -0,0 +1,25 @@
+title = Unexpected Visitors
+cards = checkout commit-auto reset-hard file-new file-delete
+
+[description]
+
+*ring ring* Oh no! You wanted to meet with your parents in your student apartment and your alarm did not go off in time to clean your room!
+"Coming!" you yell while you jump out of bed. Now quick! Remove all litter and trash you can find by using `rm [file]` and commit your changes.
+
+[setup]
+
+echo Very smelly socks. > socks
+echo A tiny couch table. > table
+echo An empty energy drink can. > can
+echo An empty bag of chips. > bag_of_chips
+git add .
+git commit -m "weekend"
+
+[win]
+
+NUM_FILES="$(git ls-tree --name-only -r HEAD | wc -l)"
+test "$NUM_FILES" -eq 1 && test "$(git ls-tree --name-only -r HEAD)" = "table"
+
+[congrats]
+
+Your parents are happy to see you (and of course your neat and tidy apartment)!

levels/files/files-move

@@ -0,0 +1,28 @@
+title = No sleep required
+cards = checkout commit-auto reset-hard file-new file-delete file-rename
+
+[description]
+
+Our client just let us know they don't need sleep! Huh.
+
+Because of that, they won't require a bed, and have asked you to build some other piece of furniture from the wood.
+
+Can you rename the object into something else, give it a new description, and make a commit from that?
+
+[setup]
+
+echo A yellow cupboard with lots of drawers. > cupboard
+echo A really big yellow shelf. > shelf
+echo A comfortable, yellow bed with yellow cushions. > bed
+git add .
+git commit -m "Initial furniture"
+
+[win]
+
+NUM_FILES="$(git ls-tree --name-only -r HEAD | wc -l)"
+NUM_BEDS="$(git ls-tree --name-only -r HEAD | grep '^bed$' | wc -l)"
+test "$NUM_BEDS" = 0 && test "$NUM_FILES" -ge 3
+
+[congrats]
+
+Neat! It even still looks a bit comfortable!